Structure and Intermolecular Interactions in Aqueous Solutions of Polyethylene Glycol

László Almásy; Oleksandr P. Artykulnyi; Viktor I. Petrenko; Oleksandr I. Ivankov; Leonid A. Bulavin; Minhao Yan; Vasil M. Haramus

doi:10.3390/molecules27082573

Molecules (Apr 2022)

Structure and Intermolecular Interactions in Aqueous Solutions of Polyethylene Glycol

László Almásy,
Oleksandr P. Artykulnyi,
Viktor I. Petrenko,
Oleksandr I. Ivankov,
Leonid A. Bulavin,
Minhao Yan,
Vasil M. Haramus

Affiliations

László Almásy: State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
Oleksandr P. Artykulnyi: Faculty of Physics, Taras Shevchenko Kyiv National University, 01601 Kyiv, Ukraine
Viktor I. Petrenko: BCMaterials, Basque Centre for Materials, Applications and Nanostructures, 48940 Leioa, Spain
Oleksandr I. Ivankov: Faculty of Physics, Taras Shevchenko Kyiv National University, 01601 Kyiv, Ukraine
Leonid A. Bulavin: Faculty of Physics, Taras Shevchenko Kyiv National University, 01601 Kyiv, Ukraine
Minhao Yan: State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
Vasil M. Haramus: Helmholtz-Zentrum Hereon, Max-Planck-Street 1, 21502 Geesthacht, Germany

DOI: https://doi.org/10.3390/molecules27082573
Journal volume & issue: Vol. 27, no. 8
p. 2573

Abstract

Read online

Aqueous solutions of polyethylene glycol are studied by small-angle neutron scattering over a broad range of polymer molecular masses and concentrations. The scattering data were modeled by a Gaussian chain form factor combined with random phase approximation, which provided good fits over the whole studied concentration range. The results showed that polyethylene glycol in the molecular mass range 0.4–20 kDa in water at physiological temperature T = 37 °C behaves like a random coil in nearly theta solvent conditions. The obtained results serve as a reference for the description of complex mixtures with PEG used in various applications.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

About the journal

Abstract

Keywords